The abstract describes a generic, open-source infrastructure called SearchBestie (or S'Bestie for short) that we propose as a platform for experimenting with search-based techniques and for applying them in the area of software testing. Further, motivated by a lack of research on search-based testing targeted at identifying concurrency-related problems, we instantiate S'Bestie for search-based testing of concurrent programs using the IBM's concurrency testing infrastructure called ConTest. We demonstrate capabilities of S'Bestie on a series of experiments, which---despite we have just started our experiments with S'Bestie---also illustrate the fact that search-based testing can be quite useful in the context of testing concurrent programs.